However, although the latter varies significantly from cycle to cycle (as reflected in different cycle magnitudes varying by a
factor of 2), the
tilt angle
exhibits roughly the same variations over all cycles, in accord with the idea of a regular cyclic behaviour (Suess et al. 1993; Cliver & Ling 2001; Alanko - Huotari et al. 2007), depending only on the solar cycle phase and not on its strength.